21316828

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{1117}}^1$

素因数の和:1501

約数の個数: 24

約数和(自身を含む): 40319552

約数和(自身を除く): 19002724

約数列:

[1, 2, 4, 13, 26, 52, 367, 734, 1117, 1468, 2234, 4468, 4771, 9542, 14521, 19084, 29042, 58084, 409939, 819878, 1639756, 5329207, 10658414, 21316828]

約数ペア:

[(1, 21316828), (2, 10658414), (4, 5329207), (13, 1639756), (26, 819878), (52, 409939), (367, 58084), (734, 29042), (1117, 19084), (1468, 14521), (2234, 9542), (4468, 4771)]